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Recent studies have revealed the vulnerability of deep neural networks (DNNs) to various backdoor attacks, where the behavior of DNNs can be compromised by utilizing certain types of triggers or poisoning mechanisms. State-of-the-art (SOTA)…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Nazmul Karim , Abdullah Al Arafat , Umar Khalid , Zhishan Guo , Nazanin Rahnavard

Prompt tuning has emerged as a key technique for adapting large pre-trained Decision Transformers (DTs) in offline Reinforcement Learning (RL), particularly in multi-task and few-shot settings. The Prompting Decision Transformer (PDT)…

机器学习 · 计算机科学 2025-10-02 Finn Rietz , Oleg Smirnov , Sara Karimi , Lele Cao

Large language models (LLMs) have achieved significant success across various domains. However, training these LLMs typically involves substantial memory and computational costs during both forward and backward propagation. While…

机器学习 · 计算机科学 2025-03-03 Sunghyeon Woo , Baeseong Park , Byeongwook Kim , Minjung Jo , Se Jung Kwon , Dongsuk Jeon , Dongsoo Lee

Recent advance in Dense Retrieval (DR) techniques has significantly improved the effectiveness of first-stage retrieval. Trained with large-scale supervised data, DR models can encode queries and documents into a low-dimensional dense space…

信息检索 · 计算机科学 2022-08-18 Jingtao Zhan , Qingyao Ai , Yiqun Liu , Jiaxin Mao , Xiaohui Xie , Min Zhang , Shaoping Ma

Recent advances in dense retrieval techniques have offered the promise of being able not just to re-rank documents using contextualised language models such as BERT, but also to use such models to identify documents from the collection in…

信息检索 · 计算机科学 2021-08-25 Nicola Tonellotto , Craig Macdonald

Prompt Learning has recently gained great popularity in bridging the gap between pretraining tasks and various downstream tasks. It freezes Pretrained Language Models (PLMs) and only tunes a few task-related parameters (prompts) for…

计算与语言 · 计算机科学 2022-06-07 Yuezihan Jiang , Hao Yang , Junyang Lin , Hanyu Zhao , An Yang , Chang Zhou , Hongxia Yang , Zhi Yang , Bin Cui

Prompt tuning attempts to update few task-specific parameters in pre-trained models. It has achieved comparable performance to fine-tuning of the full parameter set on both language understanding and generation tasks. In this work, we study…

计算与语言 · 计算机科学 2022-07-15 Weng Lam Tam , Xiao Liu , Kaixuan Ji , Lilong Xue , Xingjian Zhang , Yuxiao Dong , Jiahua Liu , Maodi Hu , Jie Tang

Prompt-based methods have achieved promising results in most few-shot text classification tasks. However, for readability assessment tasks, traditional prompt methods lackcrucial linguistic knowledge, which has already been proven to be…

计算与语言 · 计算机科学 2024-04-11 Ziyang Wang , Sanwoo Lee , Hsiu-Yuan Huang , Yunfang Wu

With the emergence of large pre-trained vison-language model like CLIP, transferable representations can be adapted to a wide range of downstream tasks via prompt tuning. Prompt tuning tries to probe the beneficial information for…

计算机视觉与模式识别 · 计算机科学 2023-07-10 Yinghui Xing , Qirui Wu , De Cheng , Shizhou Zhang , Guoqiang Liang , Peng Wang , Yanning Zhang

Pre-trained large language models can efficiently interpolate human-written prompts in a natural way. Multitask prompted learning can help generalization through a diverse set of tasks at once, thus enhancing the potential for more…

计算与语言 · 计算机科学 2022-12-22 M Saiful Bari , Aston Zhang , Shuai Zheng , Xingjian Shi , Yi Zhu , Shafiq Joty , Mu Li

Many challenging real-world problems require the deployment of ensembles multiple complementary learning models to reach acceptable performance levels. While effective, applying the entire ensemble to every sample is costly and often…

密码学与安全 · 计算机科学 2022-09-20 Orel Lavie , Asaf Shabtai , Gilad Katz

Retrieval-augmented language models (LMs) have received much attention recently. However, typically the retriever is not trained jointly as a native component of the LM, but added post-hoc to an already-pretrained LM, which limits the…

计算与语言 · 计算机科学 2024-07-23 Ohad Rubin , Jonathan Berant

Foundation models and their checkpoints have significantly advanced deep learning, boosting performance across various applications. However, fine-tuned models often struggle outside their specific domains and exhibit considerable…

Pre-trained Language Models (PLMs) have demonstrated impressive performance in various NLP tasks. However, traditional fine-tuning methods for leveraging PLMs for downstream tasks entail significant computational overhead. Prompt-tuning has…

机器学习 · 计算机科学 2025-07-29 Ali Shakeri , Wei Emma Zhang , Amin Beheshti , Weitong Chen , Jian Yang , Lishan Yang

Pre-trained models have been shown effective in many code intelligence tasks. These models are pre-trained on large-scale unlabeled corpus and then fine-tuned in downstream tasks. However, as the inputs to pre-training and downstream tasks…

软件工程 · 计算机科学 2022-07-26 Chaozheng Wang , Yuanhang Yang , Cuiyun Gao , Yun Peng , Hongyu Zhang , Michael R. Lyu

Prompting has shown impressive success in enabling large pretrained language models (LMs) to perform diverse NLP tasks, especially when only few downstream data are available. Automatically finding the optimal prompt for each task, however,…

计算与语言 · 计算机科学 2022-10-25 Mingkai Deng , Jianyu Wang , Cheng-Ping Hsieh , Yihan Wang , Han Guo , Tianmin Shu , Meng Song , Eric P. Xing , Zhiting Hu

This paper considers Pseudo-Relevance Feedback (PRF) methods for dense retrievers in a resource constrained environment such as that of cheap cloud instances or embedded systems (e.g., smartphones and smartwatches), where memory and CPU are…

信息检索 · 计算机科学 2024-12-09 Hang Li , Chuting Yu , Ahmed Mourad , Bevan Koopman , Guido Zuccon

In practical recommendation scenarios, users often interact with items under multi-typed behaviors (e.g., click, add-to-cart, and purchase). Traditional collaborative filtering techniques typically assume that users only have a single type…

信息检索 · 计算机科学 2023-02-14 Chi Zhang , Rui Chen , Xiangyu Zhao , Qilong Han , Li Li

Information retrieval systems are crucial for enabling effective access to large document collections. Recent approaches have leveraged Large Language Models (LLMs) to enhance retrieval performance through query augmentation, but often rely…

信息检索 · 计算机科学 2025-04-15 Pengcheng Jiang , Jiacheng Lin , Lang Cao , Runchu Tian , SeongKu Kang , Zifeng Wang , Jimeng Sun , Jiawei Han

Retrieval module can be plugged into many downstream NLP tasks to improve their performance, such as open-domain question answering and retrieval-augmented generation. The key to a retrieval system is to calculate relevance scores to query…

计算与语言 · 计算机科学 2024-10-22 Lu Dai , Hao Liu , Hui Xiong